Astronomical Observatory
Founded in 1894, Lowell Observatory is one of the oldest private observatories in the United States and a Registered National Historic Landmark. Recognized by TIME as one of the “World’s 100 Greatest Places” in 2025 and by Newsweek as the “Best Science Museum in the U.S.,” Lowell is currently celebrating more than 130 years of discovery and the centennial of Route 66. Visitors can experience awe-inspiring views of the cosmos through state-of-the-art telescopes or with the naked eye. On clear nights, guests can observe the Moon, planets, and distant galaxies through the historic 24-inch Clark Refractor or the six advanced telescopes at the Open Deck Observatory. Lowell’s new Astronomy Discovery Center features a rooftop open-air planetarium, an immersive theater, a hands-on children’s exhibit hall, a café, and more. Every space is designed to spark curiosity, inspire wonder, and foster a deeper connection to the universe. The observatory also offers a wide range of live science talks and guided tours that highlight its pioneering discoveries and explore the cutting edge of modern astronomical research.
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$4 OFF Admission. Valid for $4 off per person in group (up to 6 people). Exclusions may apply. Expires 8/15/2026.
Coupon Code : NAU2404.
Lowell Observatory
1400 W. Mars Hill Rd.
Flagstaff, AZ 86001
(928) 774-3358